Flow price: --
b7bca77e568a5967dcc75316906c390b6f943a692d4a546101a0af298cf6a6b5

Transaction

Hash: b7bca77e568a5967dcc75316906c390b6f943a692d4a546101a0af298cf6a6b5
error
Error

Whoops! 😨 Something unexpected happened...

[Error Code: 1101] cadence runtime error Execution failed:
  --> b7bca77e568a5967dcc75316906c390b6f943a692d4a546101a0af298cf6a6b5:28:28
   |
28 |                             self.modifierRef.markAttendance(currentNFT: self.currentNFT, attendance: "true")    
   |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: unexpectedly found nil while forcing an Optional value
   --> 1e3c78c6d580273b.LNVCT:295:34
Hash:
b7bca77e568a5967dcc75316906c390b6f943a692d4a546101a0af298cf6a6b5
Status:
ERROR
Block height:
39730829
Block id:
7c00cef54ea9059169afddd1f6a312287ee2e483291d1833a367d0d47ce4b298
Timestamp:
Wednesday 26 October 2022 at 05:43:21 UTC
()
Proposer:
Authorizers:
Gas used:
47